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<a name="1" href="#1">1</a>   <em class="comment">/*</em>
<a name="2" href="#2">2</a>   <em class="comment"> * $Header$</em>
<a name="3" href="#3">3</a>   <em class="comment"> * $Revision: 1222 $</em>
<a name="4" href="#4">4</a>   <em class="comment"> * $Date: 2006-11-08 05:59:38 -0800 (Wed, 08 Nov 2006) $</em>
<a name="5" href="#5">5</a>   <em class="comment"> *</em>
<a name="6" href="#6">6</a>   <em class="comment"> * ====================================================================</em>
<a name="7" href="#7">7</a>   <em class="comment"> *</em>
<a name="8" href="#8">8</a>   <em class="comment"> * Copyright 2000-2002 bob mcwhirter &amp; James Strachan.</em>
<a name="9" href="#9">9</a>   <em class="comment"> * All rights reserved.</em>
<a name="10" href="#10">10</a>  <em class="comment"> *</em>
<a name="11" href="#11">11</a>  <em class="comment"> * Redistribution and use in source and binary forms, with or without</em>
<a name="12" href="#12">12</a>  <em class="comment"> * modification, are permitted provided that the following conditions are</em>
<a name="13" href="#13">13</a>  <em class="comment"> * met:</em>
<a name="14" href="#14">14</a>  <em class="comment"> * </em>
<a name="15" href="#15">15</a>  <em class="comment"> *   * Redistributions of source code must retain the above copyright</em>
<a name="16" href="#16">16</a>  <em class="comment"> *     notice, this list of conditions and the following disclaimer.</em>
<a name="17" href="#17">17</a>  <em class="comment"> * </em>
<a name="18" href="#18">18</a>  <em class="comment"> *   * Redistributions in binary form must reproduce the above copyright</em>
<a name="19" href="#19">19</a>  <em class="comment"> *     notice, this list of conditions and the following disclaimer in the</em>
<a name="20" href="#20">20</a>  <em class="comment"> *     documentation and/or other materials provided with the distribution.</em>
<a name="21" href="#21">21</a>  <em class="comment"> * </em>
<a name="22" href="#22">22</a>  <em class="comment"> *   * Neither the name of the Jaxen Project nor the names of its</em>
<a name="23" href="#23">23</a>  <em class="comment"> *     contributors may be used to endorse or promote products derived </em>
<a name="24" href="#24">24</a>  <em class="comment"> *     from this software without specific prior written permission.</em>
<a name="25" href="#25">25</a>  <em class="comment"> * </em>
<a name="26" href="#26">26</a>  <em class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS</em>
<a name="27" href="#27">27</a>  <em class="comment"> * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED</em>
<a name="28" href="#28">28</a>  <em class="comment"> * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A</em>
<a name="29" href="#29">29</a>  <em class="comment"> * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER</em>
<a name="30" href="#30">30</a>  <em class="comment"> * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</em>
<a name="31" href="#31">31</a>  <em class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,</em>
<a name="32" href="#32">32</a>  <em class="comment"> * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR</em>
<a name="33" href="#33">33</a>  <em class="comment"> * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF</em>
<a name="34" href="#34">34</a>  <em class="comment"> * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING</em>
<a name="35" href="#35">35</a>  <em class="comment"> * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</em>
<a name="36" href="#36">36</a>  <em class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</em>
<a name="37" href="#37">37</a>  <em class="comment"> *</em>
<a name="38" href="#38">38</a>  <em class="comment"> * ====================================================================</em>
<a name="39" href="#39">39</a>  <em class="comment"> * This software consists of voluntary contributions made by many </em>
<a name="40" href="#40">40</a>  <em class="comment"> * individuals on behalf of the Jaxen Project and was originally </em>
<a name="41" href="#41">41</a>  <em class="comment"> * created by bob mcwhirter &lt;bob@werken.com> and </em>
<a name="42" href="#42">42</a>  <em class="comment"> * James Strachan &lt;jstrachan@apache.org>.  For more information on the </em>
<a name="43" href="#43">43</a>  <em class="comment"> * Jaxen Project, please see &lt;<a href="http://www.jaxen.org/" target="alexandria_uri">http://www.jaxen.org/</a>>.</em>
<a name="44" href="#44">44</a>  <em class="comment"> * </em>
<a name="45" href="#45">45</a>  <em class="comment"> * $Id: XPathFunctionContext.java 1222 2006-11-08 13:59:38Z elharo $</em>
<a name="46" href="#46">46</a>  <em class="comment"> */</em>
<a name="47" href="#47">47</a>  
<a name="48" href="#48">48</a>  
<a name="49" href="#49">49</a>  <strong>package</strong> org.jaxen;
<a name="50" href="#50">50</a>  
<a name="51" href="#51">51</a>  <strong>import</strong> org.jaxen.function.BooleanFunction;
<a name="52" href="#52">52</a>  <strong>import</strong> org.jaxen.function.CeilingFunction;
<a name="53" href="#53">53</a>  <strong>import</strong> org.jaxen.function.ConcatFunction;
<a name="54" href="#54">54</a>  <strong>import</strong> org.jaxen.function.ContainsFunction;
<a name="55" href="#55">55</a>  <strong>import</strong> org.jaxen.function.CountFunction;
<a name="56" href="#56">56</a>  <strong>import</strong> org.jaxen.function.FalseFunction;
<a name="57" href="#57">57</a>  <strong>import</strong> org.jaxen.function.FloorFunction;
<a name="58" href="#58">58</a>  <strong>import</strong> org.jaxen.function.IdFunction;
<a name="59" href="#59">59</a>  <strong>import</strong> org.jaxen.function.LangFunction;
<a name="60" href="#60">60</a>  <strong>import</strong> org.jaxen.function.LastFunction;
<a name="61" href="#61">61</a>  <strong>import</strong> org.jaxen.function.LocalNameFunction;
<a name="62" href="#62">62</a>  <strong>import</strong> org.jaxen.function.NameFunction;
<a name="63" href="#63">63</a>  <strong>import</strong> org.jaxen.function.NamespaceUriFunction;
<a name="64" href="#64">64</a>  <strong>import</strong> org.jaxen.function.NormalizeSpaceFunction;
<a name="65" href="#65">65</a>  <strong>import</strong> org.jaxen.function.NotFunction;
<a name="66" href="#66">66</a>  <strong>import</strong> org.jaxen.function.NumberFunction;
<a name="67" href="#67">67</a>  <strong>import</strong> org.jaxen.function.PositionFunction;
<a name="68" href="#68">68</a>  <strong>import</strong> org.jaxen.function.RoundFunction;
<a name="69" href="#69">69</a>  <strong>import</strong> org.jaxen.function.StartsWithFunction;
<a name="70" href="#70">70</a>  <strong>import</strong> org.jaxen.function.StringFunction;
<a name="71" href="#71">71</a>  <strong>import</strong> org.jaxen.function.StringLengthFunction;
<a name="72" href="#72">72</a>  <strong>import</strong> org.jaxen.function.SubstringAfterFunction;
<a name="73" href="#73">73</a>  <strong>import</strong> org.jaxen.function.SubstringBeforeFunction;
<a name="74" href="#74">74</a>  <strong>import</strong> org.jaxen.function.SubstringFunction;
<a name="75" href="#75">75</a>  <strong>import</strong> org.jaxen.function.SumFunction;
<a name="76" href="#76">76</a>  <strong>import</strong> org.jaxen.function.TranslateFunction;
<a name="77" href="#77">77</a>  <strong>import</strong> org.jaxen.function.TrueFunction;
<a name="78" href="#78">78</a>  <strong>import</strong> org.jaxen.function.ext.EndsWithFunction;
<a name="79" href="#79">79</a>  <strong>import</strong> org.jaxen.function.ext.EvaluateFunction;
<a name="80" href="#80">80</a>  <strong>import</strong> org.jaxen.function.ext.LowerFunction;
<a name="81" href="#81">81</a>  <strong>import</strong> org.jaxen.function.ext.UpperFunction;
<a name="82" href="#82">82</a>  <strong>import</strong> org.jaxen.function.xslt.DocumentFunction;
<a name="83" href="#83">83</a>  
<a name="84" href="#84">84</a>  <em>/**</em><em> A &lt;code>FunctionContext&lt;/code> implementing the core XPath</em>
<a name="85" href="#85">85</a>  <em> *  function library, plus Jaxen extensions.</em>
<a name="86" href="#86">86</a>  <em> *</em>
<a name="87" href="#87">87</a>  <em> *  &lt;p></em>
<a name="88" href="#88">88</a>  <em> *  The core XPath function library is provided through this</em>
<a name="89" href="#89">89</a>  <em> *  implementation of &lt;code>FunctionContext&lt;/code>.  Additionally,</em>
<a name="90" href="#90">90</a>  <em> *  extension functions have been provided, as enumerated below.</em>
<a name="91" href="#91">91</a>  <em> *  &lt;/p></em>
<a name="92" href="#92">92</a>  <em> *</em>
<a name="93" href="#93">93</a>  <em> *  &lt;p></em>
<a name="94" href="#94">94</a>  <em> *  This class is re-entrant and thread-safe.  If using the</em>
<a name="95" href="#95">95</a>  <em> *  default instance, it is inadvisable to call </em>
<a name="96" href="#96">96</a>  <em> *  {@link #registerFunction(String, String, Function)}</em>
<a name="97" href="#97">97</a>  <em> *  as that will extend the global function context, affecting other</em>
<a name="98" href="#98">98</a>  <em> *  users. </em>
<a name="99" href="#99">99</a>  <em> *  &lt;/p></em>
<a name="100" href="#100">100</a> <em> *</em>
<a name="101" href="#101">101</a> <em> *  &lt;p></em>
<a name="102" href="#102">102</a> <em> *  Extension functions:</em>
<a name="103" href="#103">103</a> <em> *  &lt;/p></em>
<a name="104" href="#104">104</a> <em> *</em>
<a name="105" href="#105">105</a> <em> *  &lt;ul></em>
<a name="106" href="#106">106</a> <em> *     &lt;li>evaluate(..)&lt;/li></em>
<a name="107" href="#107">107</a> <em> *     &lt;li>upper-case(..)&lt;/li></em>
<a name="108" href="#108">108</a> <em> *     &lt;li>lower-case(..)&lt;/li></em>
<a name="109" href="#109">109</a> <em> *     &lt;li>ends-with(..)&lt;/li></em>
<a name="110" href="#110">110</a> <em> *  &lt;/ul></em>
<a name="111" href="#111">111</a> <em> *</em>
<a name="112" href="#112">112</a> <em> *  @see FunctionContext</em>
<a name="113" href="#113">113</a> <em> *  @see org.jaxen.function</em>
<a name="114" href="#114">114</a> <em> *  @see org.jaxen.function.xslt</em>
<a name="115" href="#115">115</a> <em> *  @see org.jaxen.function.ext</em>
<a name="116" href="#116">116</a> <em> *</em>
<a name="117" href="#117">117</a> <em> *  @author &lt;a href="<a href="mailto:bob@werken.com" target="alexandria_uri">mailto:bob@werken.com</a>">bob mcwhirter&lt;/a></em>
<a name="118" href="#118">118</a> <em> */</em>
<a name="119" href="#119">119</a> <strong>public</strong> <strong>class</strong> <a href="../../org/jaxen/XPathFunctionContext.html">XPathFunctionContext</a> <strong>extends</strong> <a href="../../org/jaxen/SimpleFunctionContext.html">SimpleFunctionContext</a>
<a name="120" href="#120">120</a> {
<a name="121" href="#121">121</a>     <strong>private</strong> <strong>static</strong> <a href="../../org/jaxen/XPathFunctionContext.html">XPathFunctionContext</a> instance = <strong>new</strong> <a href="../../org/jaxen/XPathFunctionContext.html">XPathFunctionContext</a>();
<a name="122" href="#122">122</a> 
<a name="123" href="#123">123</a>     <em>/**</em><em> Retrieve the default function context</em>
<a name="124" href="#124">124</a> <em>     *</em>
<a name="125" href="#125">125</a> <em>     *  @return the default function context</em>
<a name="126" href="#126">126</a> <em>     */</em>
<a name="127" href="#127">127</a>     <strong>public</strong> <strong>static</strong> <a href="../../org/jaxen/FunctionContext.html">FunctionContext</a> getInstance()
<a name="128" href="#128">128</a>     {
<a name="129" href="#129">129</a>         <strong>return</strong> instance;
<a name="130" href="#130">130</a>     }
<a name="131" href="#131">131</a> 
<a name="132" href="#132">132</a>     <em>/**</em><em> Create a new XPath function context.</em>
<a name="133" href="#133">133</a> <em>     *  All core XPath and Jaxen extension functions are registered.</em>
<a name="134" href="#134">134</a> <em>     */</em>
<a name="135" href="#135">135</a>     <strong>public</strong> <a href="../../org/jaxen/XPathFunctionContext.html">XPathFunctionContext</a>()
<a name="136" href="#136">136</a>     {
<a name="137" href="#137">137</a>         <strong>this</strong>(<strong>true</strong>);
<a name="138" href="#138">138</a>     }
<a name="139" href="#139">139</a> 
<a name="140" href="#140">140</a>     <em>/**</em><em> Create a new XPath function context.</em>
<a name="141" href="#141">141</a> <em>     *  All core XPath functions are registered.</em>
<a name="142" href="#142">142</a> <em>     *  </em>
<a name="143" href="#143">143</a> <em>     * @param includeExtensionFunctions if true extension functions are included;</em>
<a name="144" href="#144">144</a> <em>     *     if false, they aren't</em>
<a name="145" href="#145">145</a> <em>     */</em>
<a name="146" href="#146">146</a>     <strong>public</strong> <a href="../../org/jaxen/XPathFunctionContext.html">XPathFunctionContext</a>(<strong>boolean</strong> includeExtensionFunctions)
<a name="147" href="#147">147</a>     {
<a name="148" href="#148">148</a>         registerXPathFunctions();
<a name="149" href="#149">149</a>         <strong>if</strong> (includeExtensionFunctions) {
<a name="150" href="#150">150</a>             registerXSLTFunctions();
<a name="151" href="#151">151</a>             registerExtensionFunctions();
<a name="152" href="#152">152</a>         }
<a name="153" href="#153">153</a>     }
<a name="154" href="#154">154</a> 
<a name="155" href="#155">155</a>     <strong>private</strong> <strong>void</strong> registerXPathFunctions() {
<a name="156" href="#156">156</a> 
<a name="157" href="#157">157</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="158" href="#158">158</a>                           <span class="string">"boolean"</span>,
<a name="159" href="#159">159</a>                           <strong>new</strong> <a href="../../org/jaxen/function/BooleanFunction.html">BooleanFunction</a>() );
<a name="160" href="#160">160</a> 
<a name="161" href="#161">161</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="162" href="#162">162</a>                           <span class="string">"ceiling"</span>,
<a name="163" href="#163">163</a>                           <strong>new</strong> <a href="../../org/jaxen/function/CeilingFunction.html">CeilingFunction</a>() );
<a name="164" href="#164">164</a> 
<a name="165" href="#165">165</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="166" href="#166">166</a>                           <span class="string">"concat"</span>,
<a name="167" href="#167">167</a>                           <strong>new</strong> <a href="../../org/jaxen/function/ConcatFunction.html">ConcatFunction</a>() );
<a name="168" href="#168">168</a> 
<a name="169" href="#169">169</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="170" href="#170">170</a>                           <span class="string">"contains"</span>,
<a name="171" href="#171">171</a>                           <strong>new</strong> <a href="../../org/jaxen/function/ContainsFunction.html">ContainsFunction</a>() );
<a name="172" href="#172">172</a>         
<a name="173" href="#173">173</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="174" href="#174">174</a>                           <span class="string">"count"</span>,
<a name="175" href="#175">175</a>                           <strong>new</strong> <a href="../../org/jaxen/function/CountFunction.html">CountFunction</a>() );
<a name="176" href="#176">176</a> 
<a name="177" href="#177">177</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="178" href="#178">178</a>                           <span class="string">"false"</span>,
<a name="179" href="#179">179</a>                           <strong>new</strong> <a href="../../org/jaxen/function/FalseFunction.html">FalseFunction</a>() );
<a name="180" href="#180">180</a> 
<a name="181" href="#181">181</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="182" href="#182">182</a>                           <span class="string">"floor"</span>,
<a name="183" href="#183">183</a>                           <strong>new</strong> <a href="../../org/jaxen/function/FloorFunction.html">FloorFunction</a>() );
<a name="184" href="#184">184</a> 
<a name="185" href="#185">185</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="186" href="#186">186</a>                           <span class="string">"id"</span>,
<a name="187" href="#187">187</a>                           <strong>new</strong> <a href="../../org/jaxen/function/IdFunction.html">IdFunction</a>() );
<a name="188" href="#188">188</a> 
<a name="189" href="#189">189</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="190" href="#190">190</a>                           <span class="string">"lang"</span>,
<a name="191" href="#191">191</a>                           <strong>new</strong> <a href="../../org/jaxen/function/LangFunction.html">LangFunction</a>() );
<a name="192" href="#192">192</a> 
<a name="193" href="#193">193</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="194" href="#194">194</a>                           <span class="string">"last"</span>,
<a name="195" href="#195">195</a>                           <strong>new</strong> <a href="../../org/jaxen/function/LastFunction.html">LastFunction</a>() );
<a name="196" href="#196">196</a> 
<a name="197" href="#197">197</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="198" href="#198">198</a>                           <span class="string">"local-name"</span>,
<a name="199" href="#199">199</a>                           <strong>new</strong> <a href="../../org/jaxen/function/LocalNameFunction.html">LocalNameFunction</a>() );
<a name="200" href="#200">200</a> 
<a name="201" href="#201">201</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="202" href="#202">202</a>                           <span class="string">"name"</span>,
<a name="203" href="#203">203</a>                           <strong>new</strong> <a href="../../org/jaxen/function/NameFunction.html">NameFunction</a>() );
<a name="204" href="#204">204</a> 
<a name="205" href="#205">205</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="206" href="#206">206</a>                           <span class="string">"namespace-uri"</span>,
<a name="207" href="#207">207</a>                           <strong>new</strong> <a href="../../org/jaxen/function/NamespaceUriFunction.html">NamespaceUriFunction</a>() );
<a name="208" href="#208">208</a> 
<a name="209" href="#209">209</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="210" href="#210">210</a>                           <span class="string">"normalize-space"</span>,
<a name="211" href="#211">211</a>                           <strong>new</strong> <a href="../../org/jaxen/function/NormalizeSpaceFunction.html">NormalizeSpaceFunction</a>() );
<a name="212" href="#212">212</a> 
<a name="213" href="#213">213</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="214" href="#214">214</a>                           <span class="string">"not"</span>,
<a name="215" href="#215">215</a>                           <strong>new</strong> <a href="../../org/jaxen/function/NotFunction.html">NotFunction</a>() );
<a name="216" href="#216">216</a> 
<a name="217" href="#217">217</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="218" href="#218">218</a>                           <span class="string">"number"</span>,
<a name="219" href="#219">219</a>                           <strong>new</strong> <a href="../../org/jaxen/function/NumberFunction.html">NumberFunction</a>() );
<a name="220" href="#220">220</a> 
<a name="221" href="#221">221</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="222" href="#222">222</a>                           <span class="string">"position"</span>,
<a name="223" href="#223">223</a>                           <strong>new</strong> <a href="../../org/jaxen/function/PositionFunction.html">PositionFunction</a>() );
<a name="224" href="#224">224</a> 
<a name="225" href="#225">225</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="226" href="#226">226</a>                           <span class="string">"round"</span>,
<a name="227" href="#227">227</a>                           <strong>new</strong> <a href="../../org/jaxen/function/RoundFunction.html">RoundFunction</a>() );
<a name="228" href="#228">228</a> 
<a name="229" href="#229">229</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="230" href="#230">230</a>                           <span class="string">"starts-with"</span>,
<a name="231" href="#231">231</a>                           <strong>new</strong> <a href="../../org/jaxen/function/StartsWithFunction.html">StartsWithFunction</a>() );
<a name="232" href="#232">232</a> 
<a name="233" href="#233">233</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="234" href="#234">234</a>                           <span class="string">"string"</span>,
<a name="235" href="#235">235</a>                           <strong>new</strong> <a href="../../org/jaxen/function/StringFunction.html">StringFunction</a>() );
<a name="236" href="#236">236</a> 
<a name="237" href="#237">237</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="238" href="#238">238</a>                           <span class="string">"string-length"</span>,
<a name="239" href="#239">239</a>                           <strong>new</strong> <a href="../../org/jaxen/function/StringLengthFunction.html">StringLengthFunction</a>() );
<a name="240" href="#240">240</a> 
<a name="241" href="#241">241</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="242" href="#242">242</a>                           <span class="string">"substring-after"</span>,
<a name="243" href="#243">243</a>                           <strong>new</strong> <a href="../../org/jaxen/function/SubstringAfterFunction.html">SubstringAfterFunction</a>() );
<a name="244" href="#244">244</a> 
<a name="245" href="#245">245</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="246" href="#246">246</a>                           <span class="string">"substring-before"</span>,
<a name="247" href="#247">247</a>                           <strong>new</strong> <a href="../../org/jaxen/function/SubstringBeforeFunction.html">SubstringBeforeFunction</a>() );
<a name="248" href="#248">248</a> 
<a name="249" href="#249">249</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="250" href="#250">250</a>                           <span class="string">"substring"</span>,
<a name="251" href="#251">251</a>                           <strong>new</strong> <a href="../../org/jaxen/function/SubstringFunction.html">SubstringFunction</a>() );
<a name="252" href="#252">252</a> 
<a name="253" href="#253">253</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="254" href="#254">254</a>                           <span class="string">"sum"</span>,
<a name="255" href="#255">255</a>                           <strong>new</strong> <a href="../../org/jaxen/function/SumFunction.html">SumFunction</a>() );
<a name="256" href="#256">256</a> 
<a name="257" href="#257">257</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="258" href="#258">258</a>                           <span class="string">"true"</span>,
<a name="259" href="#259">259</a>                           <strong>new</strong> <a href="../../org/jaxen/function/TrueFunction.html">TrueFunction</a>() );
<a name="260" href="#260">260</a>         
<a name="261" href="#261">261</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="262" href="#262">262</a>                           <span class="string">"translate"</span>,
<a name="263" href="#263">263</a>                           <strong>new</strong> <a href="../../org/jaxen/function/TranslateFunction.html">TranslateFunction</a>() );
<a name="264" href="#264">264</a>     }
<a name="265" href="#265">265</a> 
<a name="266" href="#266">266</a>     <strong>private</strong> <strong>void</strong> registerXSLTFunctions() {
<a name="267" href="#267">267</a> 
<a name="268" href="#268">268</a>         <em class="comment">// extension functions defined in XSLT</em>
<a name="269" href="#269">269</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="270" href="#270">270</a>                           <span class="string">"document"</span>,
<a name="271" href="#271">271</a>                           <strong>new</strong> <a href="../../org/jaxen/function/xslt/DocumentFunction.html">DocumentFunction</a>() );
<a name="272" href="#272">272</a>     }
<a name="273" href="#273">273</a> 
<a name="274" href="#274">274</a>     <strong>private</strong> <strong>void</strong> registerExtensionFunctions() {
<a name="275" href="#275">275</a>         <em class="comment">// extension functions should go into a namespace, but which one?</em>
<a name="276" href="#276">276</a>         <em class="comment">// for now, keep them in default namespace to not break any code</em>
<a name="277" href="#277">277</a> 
<a name="278" href="#278">278</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="279" href="#279">279</a>                           <span class="string">"evaluate"</span>,
<a name="280" href="#280">280</a>                           <strong>new</strong> <a href="../../org/jaxen/function/ext/EvaluateFunction.html">EvaluateFunction</a>() );
<a name="281" href="#281">281</a>         
<a name="282" href="#282">282</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="283" href="#283">283</a>                           <span class="string">"lower-case"</span>,
<a name="284" href="#284">284</a>                           <strong>new</strong> <a href="../../org/jaxen/function/ext/LowerFunction.html">LowerFunction</a>() );
<a name="285" href="#285">285</a>         
<a name="286" href="#286">286</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="287" href="#287">287</a>                           <span class="string">"upper-case"</span>,
<a name="288" href="#288">288</a>                           <strong>new</strong> <a href="../../org/jaxen/function/ext/UpperFunction.html">UpperFunction</a>() );
<a name="289" href="#289">289</a>         
<a name="290" href="#290">290</a>         registerFunction( <strong>null</strong>,  <em class="comment">// namespace URI</em>
<a name="291" href="#291">291</a>                           <span class="string">"ends-with"</span>,
<a name="292" href="#292">292</a>                           <strong>new</strong> <a href="../../org/jaxen/function/ext/EndsWithFunction.html">EndsWithFunction</a>() );
<a name="293" href="#293">293</a>     }
<a name="294" href="#294">294</a> 
<a name="295" href="#295">295</a>     
<a name="296" href="#296">296</a> }
</pre>
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